Endocrinol Metab > Volume 27(2); 2012 > Article
Endocrinology and Metabolism 2012;27(2):163-168.
DOI: https://doi.org/10.3803/EnM.2012.27.2.163    Published online June 20, 2012.
A Case of Parathyroid Apoplexy of Primary Hyperparathyroidism Presenting as Auditory Hallucinations Accompanied with Hypocalcemia.
Eon Ju Jeon, Ji Yun Jeong, Jung Guk Kim
Department of Internal Medicine, Kyungpook National University Hospital, Kyungpook National University School of Medicine, Daegu, Korea. jugkim@knu.ac.kr
Abstract
The natural history of primary hyperparathyroidism, due to parathyroid adenoma, is unknown. Furthermore, spontaneous resolution of parathyroid necrosis or hemorrhage is rare and usually asymptomatic. Here, we report a case of parathyroid apoplexy of primary hyperparathyroidism, presenting as auditory hallucinations, accompanied with hypocalcemia. A 39-year-old man who was incidentally diagnosed with primary hyperparathyroidism, and waiting surgery for parathyroidectomy presented to psychiatric service with auditory hallucinations. He developed tetany, while taking psychiatric drugs. On a follow-up investigation, his serum calcium level fell from 11.8 to 5.8 mg/dL. His intact parathyroid hormone level also decreased from 1,017 pg/mL to 71.1 pg/mL. The parathyroid apoplexy was confirmed after a surgical removal of the infarcted adenoma. The auditory hallucinations disappeared, and serum calcium level was returned to within the normal range.
Key Words: Auditory hallucination, Hypocalcemia, Parathyroid apoplexy, Primary hyperparathyroidism


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